Variable-length unit selection using LSA-based syntactic structure cost. - Chung-Hsien Wu 001; Chi-Chun Hsia; Jiun-Fu Chen; Te-Hsien Liu (ISCSLP, 2004)

Duration-embedded bi-HMM for expressive voice conversion. - Chi-Chun Hsia; Chung-Hsien Wu 001; Te-Hsien Liu (INTERSPEECH, 2005)

Voice conversion using duration-embedded bi-HMMs for expressive speech synthesis. - Chung-Hsien Wu 001; Chi-Chun Hsia; Te-Hsien Liu; Jhing-Fa Wang (IEEE Trans. Speech Audio Process., 2006)